Compare 20/70 and 15/28
20/70 is smaller than 15/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
20/70 = 20 × 2/70 × 2 = 40/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 40/140 < 75/140 or 20/70 < 15/28
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